<template>
	<view class="cart-container" v-if="cart.length!==0">
    <!-- 选择收货地址组件区域 -->
    <my-address></my-address>
		<!-- 购物车商品列表的标题区域 -->
    <view class="cart-title">
      <!-- 左侧的图标 -->
      <uni-icons type="shop" size="18"></uni-icons>
      <!-- 右侧的文本 -->
      <text class="cart-title-text">购物车</text>
    </view>
    <!-- 购物车列表 --> 
    <uni-swipe-action>
       <block v-for="(goods,i) in cart" :key="i">
      <uni-swipe-action-item :options="options" @click="swipeActionClickHandler(goods)">
          <my-goods :goods="goods" :show-radio="true" :show-num="true" @radio-change="radioCgangeHandler" @num-change="numberChangeHandler"></my-goods>
      </uni-swipe-action-item>
        </block>
    </uni-swipe-action>
    <!-- 自定义结算组件 -->
    <my-settle></my-settle>
	</view>
  
  <!-- 空白 购物车区域-->
  <view class="empty-cart" v-else>
    <image src="../../static/cart_empty@2x.png" class="empty-img"></image>
    <text class="empty-text">空空如也~</text>
  </view>
</template>

<script>
  // 导入自己封装的 mixin 模块
  import badgeMix from '@/mixins/tabbar-badge.js'
  import {mapState,mapMutations} from 'vuex'
	export default {
    // 将 badgeMix 混入到当前的页面中进行使用
    mixins:[badgeMix],
    computed:{
      ...mapState('m_cart',['cart'])
    },
		data() {
			return {	
      options:[{
        text:'删除',
        style:{
          backgroundColor:'#C00000'
        }
      }]
			};
		},
      methods:{
        ...mapMutations('m_cart',['updateGoodsState','updateGoodsCount','removeGoodsById']),
       radioCgangeHandler(e){
         // console.log(e)
         this.updateGoodsState(e)
       },
       // 更新商品发生的变化
       numberChangeHandler(e){
         // console.log(e)
         this.updateGoodsCount(e)
       },
       swipeActionClickHandler(goods){
         // console.log(goods)
         this.removeGoodsById(goods.goods_id)
       }
      }
	}
</script>

<style lang="scss">
  .cart-container{
    padding-bottom: 50px;
  }
.cart-title{
  height: 40px;
  display: flex;
  align-items: center;
  padding-left: 5px;
  border-bottom: 1px solid #efefef;
  .cart-title-text{
    font-size: 14px;
    margin-left: 10px;
  }
}
.empty-cart{
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 150px;
  .empty-img{
    width: 90px;
    height: 90px;
  }
  .empty-text{
    font-size: 12px;
    color: gray;
    margin-top: 15px;
  }
}
</style>
